PlaceTime.com is intended to be a URI space containing URIs that represent places and times.These URIs can serve as common identifiers for a wide variety of applications such as genealogical research or calendaring.
D. Jones. Proceedings of the Researching Learning in Immersive Virtual Environments Conference, (2011)Proceedings of the Researching Learning in Immersive Virtual Environments Conference, 21-22 September 2011, The Open University, UK (ISBN 978-1-78007-320-0).